I have a pump Family with clearance modeled as semi-transparent solid. It looks nice before I connect it to a piping system. After that the clearance turns to opaque solid.
Is there a way to keep the pump as solid and clearance as semi-transparent?
Thank you.
Are you using any type of Piping System overrides such as applying a material to the type properties of the system? If you are then everything connected to the system will inherit the material override you specified for the system.
Thank you the reply. I understand that the opaque appearance is resulted by the material assigned to the system.
Sending the question to the forum I have had a hope that the community could suggest a workaround. Or an Autodesk representative would find that such appearance works "as designed", but not "as expected".
We really experience problems working with piping system graphics conflicting expected equipment appearance. For example, traditionally a return pipe on single line drawing should be shown with a dash line. Applying this graphics override for the piping system makes mechanical equipment appearing with dash line. Often the equipment is connected to several system and its graphics changes randomly. It is not good.
We are trying to cope with the problem in two ways:
1. Assigning solid line for piping system and applying Filters for view to show return pipes with dashed lines.
2. Assigning dash line for piping system and applying Filters for view to show equipment with solid lines.
A big disadvantage for both methods is that they don't work properly when we need to show "existing" graphic presentation. The problem is that the Filter overrides the phase graphics override.
All that is big pain for us. And now we found the problem with clearance appearance. 
Quite long ago I came to conclusion that system's graphics override should not affect the Mechanical Equipment category. Maybe a proper solution exists and it can be generously shared on the forum. If not it would be nice if Autodesk take a look for that problem.
I know about the visibility override hierarchy. Unfortunately that knowledge doesn't help, I cannot achieve the result we need. Probably because of "wrong" hierarchy. 
@evgeny.kurbatov wrote:Probably because of "wrong" hierarchy.
Of course it is. Have you given up grasshopper?
Let's say we want to see existing and new hydronic systems on a floor plan.
We have the following settings for the Phase graphics override:
As supposed we apply Hot Water Return system graphics (i.e. blue color blue and long dash line pattern) with filters. If so the brown short dash line defined in Phases will never appear for the view.
